return iterator begin (needed for range-based for)

takes 'vx_reference' itself and RefWrapper<T> via 'operator vx_reference()'

@brief Integer division with result round up. Use this function instead of `ceil((float)a / b)` expressions. @sa alignSize */

FIXME: taken from the DNN module

Releases all internal working memory.

! @brief returns x - y @pre x.e == y.e and x.f >= y.f */

cv::GMat public implementation //////////////////////////////////////////////

@brief Returns the depth of a matrix element. The method returns the identifier of the matrix element depth (the type of each individual chan

@brief releases the memory owned by the tensor * * Pre-conditions: * - tensor must be non-empty * * Excep

Initialize sequence reader: */